Your brain waves are measured.
Which test and when?
Intelligence is measured in various ways - the most popular being an IQ test.
A ping is sent out from the testing center to the computer to identify the best server to use. Then a test of the downloading from the test facility and an upload to the test facility are conducted to test the computers speed.
The dependent variable , which is the one being measured.
the test variable is the independent variable.
The differences in test scores, or predictions from those scores, between two or more subgroups of the population that are matched on the underlying construct being measured.
It is life threatening. Call 911 or ask medical help immediately if there are signs. Laboratory test will be conducted.
Because if the experiment being conducted in the test tube is explosive or very reactive then it can spit out stuff and this can be dangerous to your eyes or skin. so by pointing the test tube away then you won't harm anyone if anything spits out